Combined heater and steam-generator.



No. 723,991. i V "PATBNTED MAR. 31, 1903.

4 D. CLINE. COMBINED HEATER AND STEAM GENERATOR.

APPLIOA'I'ION FILED JUNE 28, 1902.

N0 MODEL. 3 SHEETS- SHEET 1.

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No. 723,991. PATENTED MAR. 31, 1903.,

- D. OLINE.

COMBINED HEATER AND STEAM GENERATOR.

APPLICATION FILED JUNE 28, 1902.

wi/tmmy v THE NORRIS PETERS ca, PHoTu-uTHQ, WASHINGTON, n. c.

' PATENTED MAR. 31, I903.

I). GLINB. v. COMBINED HEATER AND STEAM GENERATOR.

APPLIOATION IILBD JUNE 28, 1902.

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NO MODEL.

;7IIIIIIIIIIIIIIIIJIIA A I n n I I l I I I I I I I I I I I u n I I n n I I u I I I 3 u I xm I n u I n I I I I I I n n u g I I "III/III; .lllfllll @QQQIQIQ Hm w To all whom it concern:

UN TED STATES PATENT OFFICE.

DAVID OLINE, OF VVATSONTO\VN, PENNSYLVANIA.

CO MB'I NED HEATER AND STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 723,991, dated March 31, 1903.

Application filed June 28,1902.

Be it known that I, DAVID OLINE, a of the United States, residing at Watsontown, in the county of 'Northumberland and State of Pennsylvania, have invented a new and useful Combined Heater and Steam-Generator, of whichthe following is a specification.

This invention relates to a novel combined heater and steam-generator designed for use in conjunction with steam or h'ot-ainheating systems, or both.

The object of the invention is to produce a simple and inexpensive heating apparatus which will be exceedingly economical in the consumption of fuel and which by an ingen ious arrangement ofdampers may be regulated to effect the generation of steam or the heating of air to be supplied to a hot-air system or to disconnect the steam-generating portion of the apparatus when desired. a

A further object of the invention'is to so locate and arrange the'apparatus within the building that the lower floor will be heated directly therefrom, while the upper floors are heated by the steam or hot-air systems for which the apparatus constitutes the generator.

the line 3 3 of Fig. 2.

In addition to the objects enumerated others subordinate thereto Will appear during the course of the succeeding description of the preferred embodiment of the invention illustrated in the accompanying drawings and succinctly defined in the appended claims.

In said drawings, Figure 1 is a side elevation of my heating apparatus complete. Fig. 2 is a longitudinal sectional view of the same subject-matter. Fig. 3 is a sectional view on Fig. 4 is a similar view on the line 4 4 of Fig. 1. Fig. 5 is a similar sectional view on the line 5 5 of Fig. 2. Fig. 6 is a sectional view on the line 6 6 of Fig. 2 andillustrating the arrangement of the boiler, and Fig. 7 is a detail sectional view illustrating the arrangement of one of the hot-air tubes and a hot-air flue.

Like numerals of reference are employed to designate corresponding parts throughout the several views. 7

It is contemplated to install the apparatus in the collar or basement of the building to be heated, and while it may be built up of brickwork in a manner well understood in thecitizen Serial No. 113,640. (No model.)

art I prefer to employ in its construction a series of steel plates connected together in any desirable manner and filled in with fire-clay or other material when a wall of any considerable thickness is desired. 7

1 indicates a base-plate, from which rise the vertical plates 2, 3, 4, 5',*6, and 7, preferably extended up to the floor 8 of the first story of .the building. Between the plates 3 and 4 are located horizontal plates 9, l0, and 11, and between the'plates-5 and 6 are disposed similar horizontal-plates 12, 13, and l t. The spaces between the plates'2 and 3 and 6 and 7 are filled with fire-clay or other suitable material 15, and the spaces above the plates 9 and 12 and below the plates 11 and 1 1 are similarly filled. This construction will produce substantial side walls for the furnace, within which walls are formed the lon'gitudinal hotair chambers 16, 17,18, and 19. The chambers 16 and 17 are. disposed one above the other in the left-hand wall, and the chambers 18 and 19 aresimilarly disposed in the right- .hand wall. (SeeFig- 4.) These side chambers communicatewith the exteriorv of the generator through openings 16, 17, 18 and 19*, located adjacent to the front endof the "stove and "closed by hinged doors*20. (See Figs. 1 and 4:.)v 7

Within the space between the vertical plates 4 and 5 is constructed a somewhat-elevated base 21, slightly shorter than the easing, to form an ash-pit 22, above which are supported the sections 23 and 24 of a rocking grate, the shafts 25 and 26 of which extend in opposite directions through the side walls of the furnace and are provided with squared ends for the attachment of cranks or other devices for rocking the gratesections in a manner well understood in the art.

At a point above the base 21 is disposed a horizontal partition 27, extending between the plates 4 and 5 and having its opposite ends abutting against the front wall or plate 28 of the furnace and against the front 29 of a boiler 30, to be hereinafter described. Above the partition 27 is disposed'a' second horizontal partition 31, similar to said partition 27, except that it is-provided with a large opening closed by a loosely-supported plate 32. This arrangement of partitions within 33, leading to the direct tubes 34, extending through the boiler 30, as shown in Fig. 2, and an upper or return flue 35, disposed opposite the front ends of the return boiler-tubes 36, passed entirely through the boiler at a point above the direct tubes 34. The return-flue 35 communicates at its front end through an opening 37 with a chimney 38, provided with a damper 39, by means of which the draft may be regulated. (See Figs. 2 and 3.)

The boiler 30 is located within a boilerchamber 40, the back wall :tl of which is spaced from the rear side of the boiler and is provided with a door 4C2, by means of which access may be had to the tubes of the boiler for the purpose of cleaning or repairing the same.

It will now appear that products of combustion generated within the fire-box at the front end of the apparatus will pass back through the direct flue to the direct boiler-tubes 34, thence through the boiler-chamber 41 to the return boiler tubes 36, thence back through the return-flue 35, and through the opening 37 to the chimney. Steam will thus be generated in the boiler, and the air within the hot-air chamber 43, defined between the partition 31 and the floor 8, will be heated sufficiently to warm the lower apartments of the house. If desired, the floor 8 may be pro vided with a register-opening ll, as shown in Fig. 2.

The boiler 30 is provided, as usual, with a steam-dome 45, equipped with a gage 4:6 and a safety-valve 4:7 and communicating with a steam-pipe a8, through which the steam is supplied to the steam heating system installed th roughoutthe building. Water may be supplied to the boiler in any suitable manner; but as it is desirable to heat the same before its entrance to the interi'or of the boiler I provide water-heating coils 49 and 50 within the boiler-chamber40 at opposite sides of the boiler, as shown in Fig. 6. communicate with the interior of the boiler near its bottom and are led through the plates 2 and 7 to any suitable source of supply. Obviouslyproductsofcombustionpassing into the boiler-chamber from the rear ends of the direct tubes will heat the coils 49 and 50, and thereby cause the water to be supplied to the boiler at a proper temperatu re to prevent chilling. Located within the boiler and extending transversely thereof are a plurality of swinging gates 51, preferably provided with openings 52 and designed to prevent undue movement of the water.

It has been premised that the apparatus is intended not only for the generation of steam to be supplied to steam-heating systems, but that it is also contemplated tosupply hot air to hot-air heating systems, and this latter characteristic of the apparatus I regard as important. Passingtransversely throughthe apparatus and exposed within the lines 33 and 35 are hot-air tubes 53 and 5t. Each of these tubes is provided at one end with a down- These coils turned extremity, preferably in the form of an elbow or angle coupling 55, located beyond one side of the heater, and said tube has its opposite end extended axially into the horizont-ally-disposed lower end 56 of a hot-air flue 57, provided with a damper 58 and extended upwardly into the building toconvey hot air to suitable registers located and arranged in a manner well understood in the art. The upper and lower sets of hot-air tubes are preferably reversely disposed-that is to say, the downturned ends of the lower tubes are located at one side of the heater and the downturned ends of the upper tubes are located at the opposite side of the heateras shown in Fig. 4. By reference to Fig. 7 it will be seen that the hot-air tubes are not fitted tightly within the ends of the dues; but, on the contrary, these tubes are of proper diameter to leave a space around their ends through which hot air is drawn from the side chambers by the injective action created by the escape of air from the tubes to the hotair flues. This will be clear by reference more particularly to Fig. 7. The air Within the side chambers 16, 17, 1S, and 19 will of course be heated by the products of combustion in contact with the plates at and 5. The tubes being exposed within the tines 33 and 35 will also be heated by the products of combustion passing through said tlues from the fire-box to the chimney. The air within the tubes will therefore be heated, and since the tendency of hot air is to rise a current of air will be induced through each of the tubes and will escape therefrom into the flues leading up into the building. As the air escapes into the lower ends of the flues from the tubes (see Fig. 7) more or less injective action will be set up and hot air will be drawn into the fine from the side chamber with which said flue communicates, the opening of the doors 2O permitting the ingress of air to the side chambers to maintain the circulation when the hot-air flues 57 are in use or permitting the escape of hot air from the side chambers to the cellar or basement, as the case may be. In other words, when the lines 57 are not in use, the dampers therein being closed, the side chambers 16 to 19 may constitute dead- 1 air chambers to act as insulation in summer 1 or they may be employed for the heating of the apartment in which the heater is located by opening the doors 20. On the other hand, if a hot-air heating system is to be supplied the dampers 58 are opened and also the doors 20, so that the air will pass from theexterior of the heater to the side chambers and thence to the fines 57 with the hot air supplied to said flues from the hot-air tubes 53 and 54.

\Ve have now seen that the apparatus is arranged to heat the apartment in which it is located and also the floor of the house located immediately above the same and that provision is made whereby said apparatus will of a steam-heating system and the heating of -tem.

air for the supply of a hot-air heating sys- It now remains to explain the manner in which the boiler may be put out of operation when--as, for instance, in summer-it is not desired to generate steam.

At the rear end of the flue 33 is located a vertically-disposed sliding damper 59, which when closed will prevent the products of combustion from passing to the direct tubes 34 of the boiler. In advance of this damperthe partition 27 is provided with an elongated opening 60, closed by a horizontal damper 61,

' which when moved to its open position will permit the direct escape of the products of the damper 59 is closed and the damper 61 opened, so that the products of combustion passing back from the fire-box instead of passing to the boiler will escape through the opening and thence directly to the chimney through the flue 35. If it is desired to put both the steam and hot-air heating systems out of operation, the dampers 59 and 61 are arranged as just stated and the dampers 58 in the flues 57 are closed.

The front wall of the casing is provided, as usual, with a fire-door 62 and one or more draft-doors 63 and with a door 64:, closing an opening at the front end of the flue 35 and designed to be opened to gain access to said flue for the purpose of cleaning the same.

For the purpose of sprinkling the ashes prior to their removal from the ash-pit Iprovide within the latter a sprinkling-pipe 65, communicating with a water-supply pipe 66, extending to a suitable source of supply and controlled by a valve 67.

It is thought that from the foregoing the construction and operation of my novel combined heater and steam-generator will be clearly apparent but while the illustrated embodiment of the invention is believed at this time to be preferable I wish to be distinctly understood as reserving to myself the right to effect such changes, modifications, and variations of the illustrated structure as may be embraced within the scope of the protection prayed.

What I claim is- 1. In a combined heater and steam-generator, the combination with a casing, of a firebox located within the casing at its front end, a boiler-chamber at the rear end of the easing, a boiler within the boiler-chamber, direct and return tubes extending entirely through the boiler, a direct flue extending horizontally from the fire-box to the direct'tubes of the boiler, and a superposed return-flue ex tending from the return-tubes of the boiler to the front of the casing, said return-flue being provided with an opening at its frontend for the escape of products of combustion to the chimney, whereby the products of combustion are compelled to traverse the entire length of the heater and generator in both di-' rections. I c

2. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, a horizontal partition dividing the interior of the easing into a lower direct flue and an upper return-flue, said partition being provided with an opening adjacent to its rear end, a damper disposed to close the opening, a second damper disposed across the rear end of the direct flue, a boiler having direct and return tubes disposed opposite the direct and return flues, and means for establishing communication between the front end of the return-flue andthe chimney, whereby the products of combustion are compelled to traverse the full length of both flues and to pass in both directions through the boiler.

3. In a combined heater and steam-generator, the combination with a casing, of a firebox located therein at its front end, a boilerchamber at the rear end of the casing, aboiler located within the boiler-chamber and spaced from the rear wall thereof, direct and return tubes extended entirely through the boiler and opening into the boiler-chamber, direct and return flues extending'from the front end of the casing to the front wall of the boiler and communicating respectively with the direct and return boiler-tubes, means for establishing communication between the chimney 4. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, horizontal direct'and return flues extending endwise of the casing, a damper controlling the communication between the rear ends of said flues, a chimney communieating with the front end of the return-flue, and side chambers formed in the side walls of the casing opposite said flues.

5. In a combined heater and steam-generator, the combination with a casing, of a firebox located in the front end of the casing, a boiler located at the rear end thereof and having direct and return tubes, horizontal direct and return flues extending from the front end of the casing to the boiler and comm unicating with the direct and return tubes thereof, a damper controlling the communication between the flues at a point immediately in advance of the boiler, a damper controlling the communication between the direct flue and the direct tubes of the boiler, and side chambers formed in the side walls of the casing opposite the direct and return flues.

6. In a combined heater and steam-genera tor, the combination with a casing, of a firebox located at the front end of the casing, a boiler-chamber at the rear end thereof, a boiler within the boiler-chamber and spaced from its rear wall, direct and return tubes extending entirely through the boiler and communicating at their rear ends with the interior of the boiler-chamber, horizontal direct and return flues extending from the front end of the casing to the boiler and communicating respectively with the direct and return tubes thereof, dampers arranged to compel the products of combustion to pass through the boiler-tubes or to pass directly from the direct flue to the return-flue, means for establishing communication between the front end of the return-flue and the chimney, and side chambers formed in the side walls of the casing and disposed opposite to and longitudinally coextensive with the flues.

7. In a combined heater and steamgene'rw tor, the combination with a casing, of a firebox within the casing, a flue for conveying the products of combustion from the fire-box, heatingtubes extending through the casing and exposed within the flue, the inlet ends of said tubes being disposed in a lower plane than the discharge ends thereof, and hot-air flues disposed exterior to the casing with their lower ends opposed to the outlet ends of the hot-air tubes.

8. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, a flue for leading the products of combustion from the fire-box, hot-air tubes extending transversely through the casing and exposed within the flue, said tubes having downturned inlet ends exterior to the casing, upwardly-extending hot-air flues having their lower ends disposed in immediate proximity to the outlet ends of the hotair tubes, and dampers in the hot-air flues.

9. In a combined heater and steam-generator, the combination with a casing, of a firebox within the casing, direct and return flues for leading the products of combustion from the fire-box to the chimney, hot-air tubes passed transversely through the casing, certain of said tubes being exposed within each of the flues, the tubes in one flue having downturned ends located beyond one side of the casing, and the tubes in the other flue having downturned ends located beyond the opposite side of the casing, and hot-air flues disposed beyond the opposite sides of the easing and having their lower ends in communication with' the discharge ends of the hotair tubes.

10. In a combined heater and steam-generator, the combination with a casing, of a firebox within the casing, a flue for leading the products of combustion from the fire-box, a side chamber formed in one side wall of the casing, a hot-air tube passed transversely through the casing and exposed within the flue, and a hot-air flue opening at its lower end into the side chamber and disposed directly opposite the discharge end of the tube.

11. In acombined heater and steam-generator, the combination with a casing, of a firebox within the casing, a flue for leading the products of combustion therefrom, a side chamber formed in one side wall of the casing, a hot-air flue having a horizontally-disposed lower end communicating with the side chamber, and a hot-air tube passed transversely through the casing and exposed within the flue therein, said tube having a downturned inlet end located beyond one side of the cas ing and having its outlet end extending into the lower end of the hot-air flue but out of contact therewith, whereby the hot-air flue receives hot air from both the side chamber and the hot air tube.

12. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, horizontal direct and return flues disposed endwise of the casing to convey the products of combustion to the chimney, upper and lower side chambers formed in the side walls of the casing opposite the flues, hot-air tubes extending transversely through the casing and exposed within the direct and return flues, each of said tubes havinga downturned inlet end exterior to the casing, and hot-air flues having horizontal lower ends communicating with certain of the side chambers, the lower end of each of said hot-air flues being disposed in alinement with the discharge end of a hot-air tube, and dampers in the hot-air flues.

13. In a combined heater and steam-generator, the combination with a casing, of a tirebox located within the casing at its front end, direct and return flues for conveying the products of combustion from the fire-box, a boiler having direct and return tubes opening into the rear ends of the direct and return flues, hot-air tubes extending transversely through the casing and exposed within the flues therein, and hot-air flues exterior to the casing with their lower ends directly opposed to the outlet ends of the hotair tubes. I

14. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, direct and return flues for conveying the products of combustion from the fire-box, a boiler-chamber located beyond the rear ends of the flues, a boiler located within said chamber and provided with direct and return tubes opening into the rear ends of the direct and return flues, a dam per controlling the escape of the products of combustion to the direct tubes of the boiler, another damper controlling the direct communication between the rear ends of the flues, hot-air tubes extending transversely through the casing and exposed within the flues therein, each of said tubes having a downturned end located exterior to the casing, hot-air flues having their lower ends disposed opposite the dis charge ends of the hot-air tubes, and dampers within the hot-air flues.

15. Inacombined heaterandsteam-generator, the combination with a casing, of a firebox located within the front end of the easing, a boiler-chamber in the rear end of the casing, horizontal direct and return flues extending endwise of the casing, the return-flue having an opening at its front end to permit the escape of the products of combustion, a boiler located Within the boiler-chamber and spaced from the rear wall thereof, direct and return tubes extending through the boiler opposite the rear ends of the direct and return flues, a damper controlling the escape of the products of combustion to the direct tubes of the boiler, another damper controlling the direct communication between the rear ends of the flues, side chambers formed in the side walls of the casing, hot-air tubes extending transversely through the casing and exposed within the flues therein, hot-air flues communicating at their lower ends with the side chambers and disposed to receive hot air from the tubes, and dampers in the hot-air flues.

16. In acombined heater and steam-generator, the combination with a casing, of a firebox therein, horizontal partitions dividing the interior of the casing to form a direct flue, a return-flue located above the direct flue and communicating therewith and a hot-air chamber located above the return-flue, and means for establishing communication between the front end ofthe return-flue and the chimney, whereby the products of combustion are compelled to traverse the entire length of the bottom wall of the hot-air chamber.

17. In a combined heater and steam-generator, the combination with a casing, of a firebox therein, direct and return flues for conveying the products of combustion from the fire-box, a boiler-chamber in rear of said flues, a boilerlocated within the boiler-chamber and spaced from the rear wall thereof, direct and return tubes extending through the boiler and opening at their rear ends into the direct and return flues, and heating-coils located within the boiler-chamber and communicating with the interior of the boiler.

In testimony that I claim the foregoing-as my own I have hereto affixed my signature in the presence of two witnesses.

' DAVID CLINE.

Witnesses:

CHARELLA SNoDDY, F. FLORENCE SNopDY. 

